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. 2017 Dec;37:13-18.
doi: 10.1016/j.ghir.2017.10.004. Epub 2017 Oct 14.

Human Placental Growth Hormone in Ectopic Pregnancy: Detection in Maternal Blood, Immunohistochemistry and Potential Clinical Implication

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Human Placental Growth Hormone in Ectopic Pregnancy: Detection in Maternal Blood, Immunohistochemistry and Potential Clinical Implication

Christoph Hübener et al. Growth Horm IGF Res. .

Abstract

Objective: To investigate human placental growth hormone (hGH-V) in ectopic pregnancy (EP): detection in maternal blood, correlation with immunohistochemistry and possible role as a marker for the course of EP.

Design: Women presenting in the outpatient or emergency department of a tertiary care university hospital with a positive pregnancy test and strong suspicion of EP by ultrasound and/or symptoms were eligible for the study (n=70). Tissue specimens from the surgically treated patients (n=50) were examined by histopathology as well as by a hGH-V specific immohistochemistry set-up. A highly sensitive hGH-V specific immunoassay was used to analyse serum samples collected before treatment, day 1 post surgery samples and serial samples for medical treatment.

Result(s): In EP patients' sera hGH-V was shown to be measurable for the first time (n=18). HGH-V however could not be detected in all patients' sera. HCG levels were significantly higher in the hGH-V serum positive group (p 0.001). HGH-V was localized to the syncytiotrophoblast in all specimens of EP examined by immunohistochemistry (n=10) regardless of the detection in the patient's blood.

Conclusion(s): Placental growth hormone (hGH-V) was shown to be present both in ectopic pregnancy patients' sera and tissue. It may serve as a biomarker for monitoring the course and treatment of EP.

Keywords: Biomarker; Ectopic pregnancy; HGH-V; Placental growth hormone.

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